Rated 4 out of 5 by OutdoorsAllDay Excellent in many ways but...
The most important advice I can give re this shoe is to order at least a half size up, if not a whole size. I followed the advice of reviewers when I made my order and went from my normal size 9 to a 9 1/2. It was too short. I exchanged them for a 10 which was perfect. Held sole to sole with one of my (size 9) running shoes, they looked the same. I normally take a medium width, and I had no problem with medium in any of the pairs I tried. I give them four stars because they are very comfortable to walk in, but I almost gave them three because it took some breaking in before the outside edges didn't gouge the underside of my ankles. (I had a friend who solved this kind of problem by adding insoles.) And as to the waterproof quality, it's odd - I stepped accidentally into a puddle that covered the top of the shoe - and my foot stayed dry, but a couple of minutes of walking in wet grass soaks my toes - every time. I'm keeping them because they are very comfortable, I like the subtle coloring and because I've gotten used to, or broken in the shoes to solve, the gouged-ankle problem.
July 28, 2015
Rated 5 out of 5 by GrannyHikerOne Comfortable, good grip on trails, breathe well!
I liked these shoes so much that this is my second pair! I wear them all year round as my every day shoe, not just for hiking. I am grateful that the sizing runs on the small size because my feet are a size 5 1/2, and it is so difficult to find a shoe that actually fits.
July 23, 2015
Rated 2 out of 5 by 1000shoes waterproof? where?
Wearing the Merrell Siren Sport 2 Waterproof Hiker my feet stay comfortably wet every morning I wear them. In north Mississippi the dew is heavy nine months out of the year, so I can look forward to wet feet from now until late October. I remove them immediately after walking, remove the insole and place them to dry. After just nine hours (nine mornings) of wear they began to have a strange acrid smell.
I ordered them because they were described as "waterproof" It is true that the synthetic leather stays dry everything else holds water like a sponge. Some mornings they still have not dried from the previous morning. I realize that if I continue placing them in the sun to dry the fiber will break down prematurely.
This shoe fails to do what I need it to do.
July 22, 2015
Rated 3 out of 5 by JustAnotherReviewer Very narrow with extremely firm soles
If your feet are even just a bit on the wide side I would not recommend purchasing these particular shoes. They are very narrow. Also the sole if very firm and does not flex easily. I've only worn mine for about 5 hours, so I'm not sure if they will 'give' any as time goes by. Other than that the shoes appear to be well constructed.
July 8, 2015
Rated 5 out of 5 by AvidHikerandCamper Heed the warning about sizing
My last pair of Merrell Sirens were an 8, so that is what I ordered. Had to trade them in for an 81/2. Once I did that, though, I put them on and took a 3 mile walk over wet, rooty and rocky terrain. They were comfy from the start and stayed dry the entire 3 miles. Love Merrells. I have a wide forefoot but a narrow heel and Merrell always fits me comfortably and they hold up well to my hard use.
July 1, 2015
Rated 3 out of 5 by GeoMom Heed the warnings
After reading the other reviews, I ordered a half size up from normal. I would have ordered a wide width, unfortunately that option does not exist. The shoe was uncomfortably small both in length and width with just a thin dress sock, and I could not possibly have gotten a mid weight hiking sock on. I sent them back.
April 8, 2015
Rated 5 out of 5 by nadeaumidd Good item
I love the style. Very sturdy with an excellent tread. As stated before though, definitely order a half-size up. I normally wear a size 7 and my toes were touching the end of the shoe and they were uncomfortably tight width-wise. A 71/2 was perfect.
March 5, 2015
Rated 1 out of 5 by greatguy Squeaky Soles!
These fit very well but the soles made terrific noise when i was walking on hard surfaces. Now, bought my husband a different pair of Merrells AllOut Blaze shoes and no squeaks. The squeaking may not bother everyone, but even my hard-of-hearing husband heard them.
March 4, 2015
Rated 4 out of 5 by Plantnut Nice Hiker - but questionable water resistance
Definitely order 1/2 size larger than you normally wear since the shoe runs a little small. Very comfortable and well built. Unfortunately, I cannot say that they are completely waterproof. Had leak-through recently and will be exchanging shoe for a different style. Possibly only Goretex is truly waterproof. Next pair of hikers will have Goretex.
February 23, 2015
Rated 5 out of 5 by hikerwomanAZ Merrells are the best!
My second pair now of Merrells. Awesome fit, took them out of the box and hiked 5.5 miles. Felt like they have been on my feet for a long time. I usually buy a sl. larger boot in the Merrells - seems to run a bit smaller than regular boots/shoes. These fit me perfect (bought the larger size). Ultra comfort, fit is perfect. Highly recommend these hikers.
February 11, 2015